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Testable signatures of quantum nonlocality in a two-dimensional chiral p-wave superconductor
Authors:Tewari Sumanta  Zhang Chuanwei  Das Sarma S  Nayak Chetan  Lee Dung-Hai
Affiliation:Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
Abstract:
A class of topological excitations-the odd-winding number vortices-in a spinless 2D chiral p-wave (px+ipy) superconductor traps Majorana fermion states in the vortex cores. For a dilute gas of such vortices, the lowest energy fermionic eigenstates are intrinsically nonlocal. We predict two testable signatures of this unusual quantum nonlocality in quasiparticle tunneling experiments. We discuss why the associated teleportationlike phenomenon does not imply the violation of causality.
Keywords:
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